Grain-binder



(No Model.) 2 sheets-' sheet' 1.

J. s. DAVIS. GRAINBINDER.

No. 530,886. Patented Deo. 11,1894.y

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2 Sheets-Sheet 2. J. S. DAVIS. GRAIN BINDER.

('No Model.)

Patented Dec. 11, 1894.

Suma/vm y fok/n S Dal/S wit/nemen The poems r'crms co., P o.. wwwa-mmv.c,

` UNITED STATESr VPATENT OFFICE.-

.IoIIN s. DAvIs, or oLEvEI.A1\ID,oIIIo.

GRAIN-BINDER.

SPECIFICATION forming part of Letters Patent No. 530,886, dated December11, 1894.

Apvlication led May 28, 1890. Serial No. 353,417. (No model.) Y

To all whom it vmay concern:

Be it knownY that I, JOHN S. DAVIS, a citizen of the United States,residing at Cleveland, county of Cuyahoga, State of Ohio, have inventedcertain new and useful Improvements in Grain-Binders; and I do herebydeclare that the following is a full, clear, and exact descrip" tion ofthe invention, which will enable others skilled in the art to which itpertains to make and use the same.

My invention relates to grain binding mechanism of the class in whichthe grain is gaveled and bound on or substantially on the level of theplatform; its general features be ing like those of the machines shownin many of my earlier patents, but more particularly in my Patents N o.388,642, dated August 28, 1888; No. 392,721, dated November 13, 1888;N0.405,2o3, dated June 11,1889; No. 416,577, dated December 3, 1889; No.419,423, dated January 14, 1890, which show the latest and most improvedforms of Iny machine; and it consists of a retaining or evening deviceto hold the straws in proper shape, while the gavel is being formed inthe binding receptacle; and in certain details of the mechanism thereofas will be hereinafter set forth.

The accompanying drawings show my improvements in the best form nowknown to me, but there are many other ways of carrying them into effect,and many changes within the skill of a good mechanic might be made inthe details to adapt them to other forms of machines Without departingfrom the spirit of my invention, as hereinafter described and claimed.

Figure 1 is a view in elevation of my binding mechanism as seen from thestubble side of the machine. Fig. 2 is a vertical transverse sectiontherethrough on the line 2, 2 of Fig. 1. Fig. 3 is a plan view on anenlarged scale of the retainer locking and tripping device.

Fig. 4 is a vertical transverse section of the same on the line 4, 4 ofFig. 3. Fig. 5 is a plan view of the needle shaft and the tensionadjusting device of its restraining spring, &c. Figure 6 is aperspective view of the fixed collar, and Fig. 7 a similar view of theratchet collar of the spring adjusting device.

In the operation of the machine'grain which is cut and dropped upon Vtheplatform of the harvester falls upon carrier belts A by which it ismoved toward the binding receptacle B, and deposited upon theinclinedbars C a'tthe throat or entrance D of the receptacle. Packing devices E(preferablylike those shown in myPatents No. 283,866, dated August 28,1883, or No. 388,642, dated August 28, 1888, though any other suitableform would answerthe purpose) urge the grain through the throat and intothe receptacle packing it against a double arm F which constitutes theouter wall of the receptacle, and also the bundle ejector. A float Gpivoted on the packer shaft e depends into the receptacle and rests uponthe gavel the gradual enlargement of which raises the free end of thefloat and through its link connection g, actuates the trippingmechanismy to start the binder into action. The gavel is compressed intosmall compass by the arms H which swing up across the throat, and forcethe grain ahead of the needle I, which descends into the receptaclebehind the compresser arms H, and places the binding cord within thegrasp of knotting mechanism mounted in the casing J such mechanism forinstance as is shown by my Patents No. 319,963, dated June 16, 1885, orNo. 401,013, dated April 9, 1889, or of any other suitable and desirablekind.

Now in practice I have found that the grain will not always lie straightin the binding receptacle. It may be firmly compressed and held at thewaist by the double arm F against which it is compressed, and yet thewhole bundle lie askew in the receptacle or the heads may be straightwhile the butts spread out or vice versa, and as a result of this thebundle is not always of uniform size or bound and discharged insatisfactory shape. To prevent this occasional trouble I have invented aretaining device Which has prongs or forks that stand on the outer sideof the receptacle about in line with the double-arm F, and far enough'away at each side of it to hold the heads and butts in line with theouter Wall of the receptacle. One only of these prongs may be used ifdesired, and I havefound that the front one which acts upon the butts ofthe grain to be the most essential, but I prefer to use two to hold inboth the heads and butts of the grain, and therefore adapted to act uponICO . These prongs are pivotally mounted above either or both ends ofany kind or length of@ grain likely `to be encountered inharvesting.

the receptacle and locked in their retaining position during thegaveling operation, but

are unlocked and left free to swing out of the L path of the boundbundle when it is ejected i from the machine. The prongs K L are carriedby a rock shaft k which is mounted -in r suitable bearing brackets M Msecured to the upper rail Z of the binder frame. The

prong K is preferably formedby bending the piece of round iron whichcomposee the shaft as shown. The front bracketfM has two ears or lugs m,m the shaft lo passing through both and supporting between them theprongln; and a metal'block or sleeve Nhavinga hooked lug or catch "n anda quadrant flange nslotted as at n2 "formed with it. This sleeve -isrigidly secured to the shaft while the prong Lis loosely fitted upon itand clamped to theA [lange n `by the bolt n3, so that its position' maybe adjusted in orout of the receptacle as r desired. A dog O alsopivoted between the ears of the bracket M is hooked at one end or toengage the hookn on the sleeve while its other end is extended to fo'rmatail 0'., which lies in the path of a lug or wiper P on `the needleshaft and is so shaped onits under side thatthe wiper tilts or rocks thedogon its pivot to disengage the hooks n, o, when theV needle descendsinto the binding receptacle, and thus unlock the retainer prongs andper-i` mit them to swing out of the way when abundle `is being ejected.

`The preponderating weight of thetailmight` be sufficient to hold thehooks into engage. ment under favorable conditions, but it might beshaken loose and it does notact quickly i. enough to insure engagementwhen the prongs fall back after a bundle has passed out beneath them, soI reinforce `it witha springt o2 which accelerates the movement of thedog; and guards against accidental disengagement;` of the hooks. Thewiper P, I prefer to make in two parts as shown and clam-p them on theneedle shaft by a bolt or any other suitablei means. A projecting lug n4is formed at any convenient place on the sleeve to act as a` bumper inpreventing the retainer from being` thrown so far up and over its centerthat it` would not fall back by gravity. This lug strikes on the hub ofthe dog O but it might be` located otherwise than as shown in thedrawings and strike some other place, and still be i equally aseffective.

In operation the retainer prongs are rigidly locked against the outwardpressure of the gavel until the hooks n o are disengaged by the wiperwhen the needle is nearly at its low-` est position in the receptacle.The needle remains in this position until the bundle `is bound anddischarged when it returns to its: normal position (shown in Fig. 2) thewiper releasing the dog `O and permitting it to again engage theretainer catch.

In my Patent No. l146,577, dated December Y other end took Vunder theupper rail A5 of the binder frame. I have found in practice that thevarying conditions of the machines require'a nice adjustment of thisspring to suit the peculiarities of each machine, and I also found thatthe first coi-ls at that end of the Vspring which `took under and wererestrained by the binder frame pressed so hard upon the needle shaft asto cut or wear deeply into it.

To providefor adj listing the'tension ofthe spring I `mount upontheneedle shaft-a collar Q having a projection q and secure it to the`shaft by a set screwqf, `and also a loose collar R having Inotches frupon its face, which areengaged by the projection q of the other collar.The loose collar `has a .projection r whichis engaged by one end of thespring S and is provided with a series of holes s into which a punch oranysuitable instrument maybe inserted to turn the co1- lar and wind upthe spring.

At the opposite or fixedend of the spring S lI make `the last few coilsof a diameter enough larger than would [inthe shaft to permit theinsertion between them and the shaft of a thimble orsleeve T which takesthe heavy side pressure `of the lastcoil and prevents `its cutting intothe shaft.

Having thustdescribed my invention, what I claim as new and useful, anddesire to secure by Letters Patent, is-

l. The combination of the arm F,-at the waist of the bundle `mounted ona shaft located on one side of the binding receptacle, the rock shafthaving retainerprongslocated on the opposite` side of `the receptacle,the hooked sleeve N, secured on said shaft, the dog O, engaging the hookon the sleeve having the tail which extends over the needle shaft, and alug or wiper on the needle shaft to trip thedog substantially as setforth.

2. The combination of the binding receptacle, the trip float, theretainer forming the outer wall of the receptacle consistingof a` rockshaft with prongs anda hooked sleeve and the dog O by means of which theretainer is locked, theslotted'quadrant on the sleeve `to permit ofadjusting the prongs of the retainer relatively to the `receptacle asset forth.

In testimony `whereof I hereunto set my hand,`this 26th day of May,1890, at Cleve- JOHN "S. DAVIS.

land, Ohio.

In presence of L. A. STRATTON, A. E 'SuMNEa IIO

